cache: use disk states to share caches

app/node/project/footage/footage.cpp

@@ -47,8 +47,6 @@ Footage::Footage(const QString &filename) :
   valid_(false),
   cancelled_(nullptr)
 {
-  SetCacheTextures(true);
-
   PrependInput(kLoopModeInput, NodeValue::kCombo, 0, InputFlags(kInputFlagNotConnectable | kInputFlagNotKeyframable));
 
   PrependInput(kFilenameInput, NodeValue::kFile, InputFlags(kInputFlagNotConnectable | kInputFlagNotKeyframable));

app/node/project/serializer/serializer220403.cpp

@@ -90,7 +90,11 @@ ProjectSerializer220403::LoadData ProjectSerializer220403::Load(Project *project
               qWarning() << "Failed to find node with ID" << id;
               reader->skipCurrentElement();
             } else {
+              // Disable cache while node is being loaded (we'll re-enable it later)
+              node->SetCachesEnabled(false);
+
               LoadNode(node, xml_node_data, reader);
+
               node->setParent(project);
             }
           }
@@ -312,6 +316,11 @@ ProjectSerializer220403::LoadData ProjectSerializer220403::Load(Project *project
     }
   }
 
+  // Re-enable caches
+  for (Node *n : project->nodes()) {
+    n->SetCachesEnabled(true);
+  }
+
   return load_data;
 }